Sliding mode active disturbance rejection decoupling control for active magnetic bearings

被引：0
|
作者：
Li B.-L. [1 ,2 ,3 ]
Zeng L. [2 ]
Zhang P.-M. [3 ]
Zhu Z.-D. [2 ]
机构：
[1] College of Automobile and Traffic Engineering, Nanjing Forestry University, Nanjing
[2] College of Mechanical Engineering, Yangzhou University, Yangzhou
[3] Zhejiang Jinggong Science & Technology Co., Ltd., Shaoxing
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2021年 / 25卷 / 07期
关键词：
Active disturbance rejection control; Decoupled; Extended state observer; Magnetic suspension bearing; Sliding mode control;
D O I：
10.15938/j.emc.2021.07.014
中图分类号：
学科分类号：
摘要：
In view of the coupling relationship between the radial degrees of freedom of the magnetic bearing system, especially the coupling of the gyroscopic effect when the rotor is at high-speed, a method based on sliding mode active disturbance rejection decoupling control was proposed. Firstly, a system model considering the coupling effect was established. The extended state observer was used to estimate and compensate the internal and external disturbances of the system, and the multivariable coupling system was decoupled into four single-degree-of-freedom second-order series integral subsystems. In order to ensure the fast dynamic response of the system, sliding mode control was introduced into the nonlinear state error feedback control law, and sliding mode active disturbance rejection controllers of their respective degrees were designed, and stability of the control system is proved by Lyapunov theory. Through the simulation of anti-disturbance and signal tracking experiments, the results show that the designed sliding mode active-disturbance-rejection controller realizes the decoupling control of the magnetic bearing, and has fast respond characteristics and ability of anti-disturbance, and can track the set signal. At the same time, the influence of the gyroscopic effect on the control under the high-speed operation of the magnetic suspension bearing is solved, and it can be applied to the high-speed occasions of the spinning machine rotor. © 2021, Harbin University of Science and Technology Publication. All right reserved.
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页码：129 / 138
页数：9
相关论文
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